______,Halve and pit them and chop roughly.,Place in the bowl and sprinkle with 1/2 cup of sugar, the salt and lemon juice and let them sit for 30 minutes.,While peaches macerate, put cream and remaining sugar in saucepan with vanilla bean or vanilla.,Heat over medium-low heat, stirring frequently to keep from scorching, until the sugar is dissolved.,Remove from heat and cool.,Discard vanilla bean.,Pour cream over peaches and mix thoroughly.,Taste to see if it needs more sugar.,(This will depend on the peaches.),Refrigerate until chilled.,Pour the mixture into an ice-cream machine and freeze according to the manufacturer's directions until set but not quite hard.,(If serving immediately, freeze harder.),Pack the ice cream into a bowl or mold to completely solidify.,When it has hardened, dip mold into hot water or wrap in a hot towel and invert onto a serving platter.,Or, simply scoop and serve.